How severe is CVE-2026-54409?

CVE-2026-54409 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-54409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-54409?

CVE-2026-54409 affects Ui Unifi Protect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-54409?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-54409 published?

CVE-2026-54409 was published on 2026-07-02 and last updated on 2026-07-07.

CVE-2026-54409

CVE-2026-54409 is a high-severity vulnerability in Ui Unifi Protect with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-665.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: Ui Unifi Protect
Published: 2026-07-02
Last modified: 2026-07-07

Description

A malicious actor with access to the network and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.

Frequently asked questions

What is CVE-2026-54409?: A malicious actor with access to the network and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.
How severe is CVE-2026-54409?: CVE-2026-54409 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-54409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-54409?: CVE-2026-54409 affects Ui Unifi Protect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-54409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-54409 published?: CVE-2026-54409 was published on 2026-07-02 and last updated on 2026-07-07.

References

https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

Affected products (1)

cpe:2.3:a:ui:unifi_protect:*:*:*:*:*:*:*:*

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